create multiple mat files for storing data

Hello Everyone,

I am reading in data from a device and want to store it in a mat file. Currently I am directly storing my readings in a mat file using save command. I want to store these readings in multiple mat files for operational efficiency.

So for example I have 100 readings I want to create 10 mat files where each mat file contains 10 readings.

Thanks

[Azzi Abdelmalek]

Can you explain how your readings are represented?

[Jan]

This is to vague to create an answer. We cannot know how your "10 readings" are represented in your program. So please add more details by editing the question.

[Ricky]

Sorry for the vague question actually my problem is I am saving cell arrays in my mat file. So my code reads the raw data from binary file saves that in a cell array and stores that cell array in mat file. I have predefined the size of cell array in which raw data is being parsed. While saving this data in mat file my MATLAB becomes very slow and I run into out of memory. So my idea was to create multiple mat files so that I can solve memory problem as I will be using less virutal memory. I am not sure if this the correct approach.

Answer 1

[Titus Edelhofer]

Hi Ricky,

instead of creating multiple .mat files you might try to create one .mat file and access variables in there in parts (using the matfile object).

doc matfile

Titus

[Ricky]

Hi Titus,

Actually the problem was that I was parsing my one row of input data and storing it. Then parsing the second row and storing it. This was causing this memory problems in MATLAB.

I have another question regarding out of memory error but I will ask in other thread.

Thanks for your time.